<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="common.css">
    <title>Vue入门指南——事件处理</title>
    <script type="importmap">
        {
            "imports":{
                "vue":"https://lib.baomitu.com/vue/latest/vue.esm-browser.js"

            }
        }
    </script>
</head>
<body>
    <div id="app">
        <p>
            <button @click="count++">内联事件处理器</button>
            计数：{{count}}
        </p>
        <p>
            <button @click="greet">方法处理器</button>
        </p>
        <p>
            <button @click="say('内联处理器调用方法',$event)">内联处理器调用方法</button>
        </p>
        <p>
            <input type="text" @keyup.ctrl.enter="doSomething" />
            <label >Crtl+Enter执行</label>
        </p>
    </div>
    <script type="module">
        import{createApp} from "vue";

        createApp({
            data(){
                return{
                    count:0,
                    name:"方法事件处理器",
                };
            },
            methods:{
                greet(event){
                    alert(this.name);
                    if(event){
                        alert(event.target.tagName);
                    }
                },
                say(msg,event){
                    alert(msg);
                    if(event){
                        alert(event.target.tagName);
                    }
                },
                doSomething(event){
                    alert(event.target.value);
                }
            },
        }).mount("#app");

    </script>
</body>
</html>